Wrench.



"0.632051. :1 Patented Aug. 29, I899.

F. H O EBENS. WRENCH.

lApplication filed June 29, 1899.)

(No Model.)

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UNITED STATES PATENT QFFICE.

FELIX HOERENS, or sT. rRANooIs, oANADA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 632,051, dated August29, 1899.

Application filed June 29, 1899. Serial No. 722,339. (No model.) I

To all whont it may concern:

Be it known thatI, FELIX l-IOERENS, a citizen of the French Republic,residing at St. Francois, county of Beauce, Province of Quebec, Canada,have invented certain new and usefullmprovements in Wrenches; and I dohereby declare that the following is a full, clear, and exactdescription of theinvention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in wrenches.

The object of my invention is to provide an improved nut and pipe wrenchwhich can be readily and quickly brought into operative position ortaken therefrom.

A further object is to provide a construction which is neat andattractive in appearance, durable in construction, simple and ef-.

ficient in operation, and which can be made at a moderate cost.

To these and other ends my invention consists in the improvedconstruction and combination of parts hereinafter fully described, andparticularly pointed out in the appended claim.

In the accompanying drawings, forming a part of this specification andin which similar numerals of reference indicate similar parts in all ofthe views, Figure 1 is a side elevation,partly in section, of myimproved wrench. Fig. 2 is a detail of the sliding rack-bar. Fig. 3 is adetail of the lockin g dogs or levers. Fig. t is a sectional view takenon the line 4 4 of. Fig. 1.

1 designates the shank of my improved wrench, having at its front endthe fixed member 2, the member 2 being provided with nut-receiving andpipe-receiving portions of usual form and construction. is provided at asuitable point with a reduced portion, said portion extending to the endthereof, the part of the reduced portion contiguous to the shank beingprovided with screw-threads 3 for a purpose hereinafter described.

4 designates the movable member, said member being adapted to embracethe shank 1 and be slidable thereon in an obvious manner. The member 4is provided with upwardly-extending flanges 5, between which is Theshank 1' pivotally mounted a jaw 6, which, in connection with thepipe-holding portion of the memher 2, is adapted to hold the pipe infirm position for operation. The jaw 6 is adapted to be held normallyincontact with the pipes by means of a spring 7, inserted between thehandle of said jaw and the casing of the member 4, as best shown in Fig.1.

By this construction it will be readily seen that Whenthe pipe-wrenchportionis to be used the handle of the jaw 6 is depressed,

thus allowing of the entrance of the pipe between the jaw and thepipe-holding member, after which the handle of the jaw 6 isreleased,,and the spring 7 serves to move the pivotal jaw 6 in contactwith the pipe and hold it in proper position, yet allowing of asufficient yielding not to injure the pipe in any manner. 1

The shank 1 has its under face provided with a recess 8, dovetailed, asshown,.said recess being adapted to receive the rack-bar 9, formedsubstantially as shown in Fig. 2 of drawings. The shank 1 is providedwith a second recess 10, communicating with the recess 9,.said secondrecess being adapted to provide for the movement of the lug 11, ex-

tending upwardly from the rack-bar 9. A

bearing-spring 12 is mounted within the re* cess 10, between the frontwall thereof and the lug 11, said spring being adapted to move saidrack-bar rearwardly and normally retain its rearward position. As shown,it will be seen that the rack-bar 9 has a slidable movement within thedovetailed recess 8, the rearward movement being obtained by means of.the spring 12, while the forward movement is obtained by means of thenut 14, mounted on the screw-threaded portion 3 in front of the handle13. It will be readily seen that if the nut 14. is rotated it will becaused to move forwardly, contacting with the end of rack-bar 9 andmoving it forward in an obvious manner, while if the nut is moved in theopposite direction the spring 12 will move the rack-bar rearwardly andhold it in contact with the nut 14.

The member 4t is provided at its under side with a slotted recess 15,within which are pivotally mounted two spring-actuated toothed pawls 16,pivot-ally mounted, as at 17, within said recess. These pawls arearranged side by side and have their teeth out of alinement with eachother, the teeth of one pawl being located on a plane approximate thecenter of the teeth of the other pawl.

By this construction it will be seen that when it is desired to useeither the nut or the pipe portion of the wrench the wrench is placedover the nut or pipe, and the movable member at is moved forward untilit contacts with the object which is to be operated upon. During thismovement the teeth of the pawl 16 will ride freely over the feed-bar 9;but owing to obvious reasons the movable jaw or member cannot come intoa close fit with the object to be acted upon. To allow of a remedy, thenut 14is rotated until the member 4, which is moved forward by theforcing of the rackbar forward, contacts with the article to be actedupon, when the wrench will be found to have moved to a close adjustment.When it is desired to release the jaws, the nut 14 is unscrewed asuitable distance, which will allow the pawls 16 to be disengaged fromthe teeth of the rack-bar, when the movable jaw can be readily moved tothe rear.

By forming the teeth of the pawls 16 in the manner shown it will bereadily seen that the adjustment of the movable member can beaccomplished in a quicker manner by reason of the fact that two holdingcontact positions can be formed between the pawls 16 and the rack-barfor every tooth on the rack-bar. In this manner it will be possible toadjust the wrench with but a partial rotation of the nut 14.

The advantages of my improved wrench are believed to be apparent, and itis not thought necessary to point them out in detail.

While I have herein shown a preferred form of carrying my invention intoeffect, yet I do not desire to limit myself to such preferred details ofconstruction, but claim the right to use any and all modificationsthereof which will serve to carry into effect the objects to be attainedby this invention in so far as such modifications and changes may fallwithin the spirit and scope of my said invention.

1 claim A Wrench comprisinga shank having a fixed member; a movablemember mounted on said shank, having a slidable movement thereon; aplurality of pawls having teeth of varying alineinent, mounted withinsaid movable member; a rack-bar mounted within said shank, said rack-barbeing adapted to be engaged by the teeth of said pawls alternately; aspring for moving said rack-bar in a rearward direction; and a nutmounted on said shank said nut being adapted to move said rack-barforwardly as it is rotated, substantially as described.

In witness whereof I have hereunto set my hand in the presence 0t twowitnesses.

FELIX HOERENS.

Witnesses: I

J. A. MARION, A. W. YoUNe.

